--- title: Data Validation and Form Handling with Blazor | daily.dev description: Learn about data validation and form handling in Blazor. Explore Blazor's built-in validation features, custom validation techniques, and best practices for... canonical: https://daily.dev/posts/data-validation-and-form-handling-with-blazor-cmb7kj4xp twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Data Validation and Form Handling with Blazor | daily.dev og:description: Learn about data validation and form handling in Blazor. Explore Blazor's built-in validation features, custom validation techniques, and best practices for... og:url: https://daily.dev/posts/data-validation-and-form-handling-with-blazor-cmb7kj4xp og:image: https://api.daily.dev/og/posts/Cmb7kj4xp.png og:image:alt: Data Validation and Form Handling with Blazor og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Data Validation and Form Handling with Blazor **[asayer](https://daily.dev/sources/asayer)** · 16 min read · 7 upvotes · 1 comments ## Summary Learn about data validation and form handling in Blazor. Explore Blazor's built-in validation features, custom validation techniques, and best practices for effective form handling. By the end of the article, you will have the knowledge to handle data validation seamlessly in your Blazor application. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@arkitek** · 0 upvotes > Pro tips : the ErrorMessage property of Validation attributes support the string format and can be mixed with the DisplayAttribute, it can be useful for generic validation. > > For exemple you can define > ``` > [Display(Name = "My Property")] > [StringLength(20, ErrorMessage = "field {0} max length is {1}")] > String MyProperty { get; set; } > ``` > And the validation will show "field My Property max length is 20". --- Tags: [#webdev](https://daily.dev/tags/webdev), [#c](https://daily.dev/tags/c), [#.net](https://daily.dev/tags/.net), [#blazor](https://daily.dev/tags/blazor) [View this post on daily.dev](https://daily.dev/posts/data-validation-and-form-handling-with-blazor-cmb7kj4xp) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Data Validation and Form Handling with Blazor","url":"https://daily.dev/posts/data-validation-and-form-handling-with-blazor-cmb7kj4xp","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/data-validation-and-form-handling-with-blazor-cmb7kj4xp"},"datePublished":"2024-05-12T22:05:59.385Z","dateModified":"2024-05-12T22:05:58.046Z","description":"Learn about data validation and form handling in Blazor. 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